wx watch crystals 32.768 khz cylindrical watch crystals available in 3 sizes - wx: 3x8mm, wx26: 2x6mm, wx15: 1.5x5mm, 32.768 khz standard specifications calibration frequency tolerance 20 ppm at 25 c for 12.5 pf, 30 ppm at 25 c for 6 pf operating temperature range (otr) -10 to +60 c for thru hole models, -40 to +85 c for wx26-32.768k-smd frequency stability over otr calculate as: frequency shift from 25 c to t c in ppm = - 0.038 x (t - 25) 10% load capacitance 12.5 pf standard, 8 pf available for wx15 equivalent series resistance (esr) 40 k maximum drive level 1 w maximum aging at 25 c for the 1st year 3 ppm maximum shunt capacitance 1.7pf maximum model frequency in khz wx26 -- 32.768k -- - smd - xxx (internal code or blank) consult factory for available specifications. a special part number may be assigned. may 2007 2 (425) 776 - 1880, fax: (425) 776- 2760, ple- sales@pletronics.com, www.pletronics.com 40 pl tronics, inc. mechanical: inches (mm) not to scale wx: 3x8mm wx26: 2x6mm wx15: 1.5x5mm due to part size and factory abilities, part marking may vary from lot to lot and may contain our part number or an internal co de. lead length lead dia lead spacing diameter max length max .079 (2.0) .100 (2.54) .039 (1.0) .079 (2.0) .236 (6.0) part numbering guide wx wx26 wx15 .122 (3.1) .083 (2.1) .059 (1.5) .323 (8.2) .244 (6.2) .201 (5.1) .394 (10.0) .394 (10.0) .169 (4.3) .014 (.35) .010 (.26) .008 (0.2) .043 (1.1) .028 (0.7) .018 (.45) model diameter length lead length lead dia lead spacing wx26-32.768k-smd non std load capacitance for wx26 blank = 12.5pf pl tronics , inc. 19013 36th ave. w, suite h lynnwood, wa 98036 usa manufacturer of high quality frequency control products . portions of the part number that appear after the frequency may not be marked on part (c of c provided) wx26 also available as -smd with formed leads optional (wx26 & 12.5pf only) .039 (1.0) .061 (1.54) .098 (2.5) .236 (6.0) .069 (1.75) solder pads packaging bulk
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